Top domains by number of subdomains 1 — 100

# Domain Subdomains Rank IP Region AS Organization
1 outlook.com Domain outlook.com Subdomains 4 000 630 Rank 327 IP 40.97.164.146 Region United States AS 8075 Organization Microsoft Corporation
2 hostedemail.com Domain hostedemail.com Subdomains 2 151 463 Rank 710 924 IP Region AS Organization
3 aol.com Domain aol.com Subdomains 937 312 Rank 97 IP 188.125.72.165 Region Switzerland AS 34010 Organization Yahoo! UK Services Limited
4 wd2go.com Domain wd2go.com Subdomains 867 354 Rank 165 404 IP Region AS Organization
5 amazonaws.com Domain amazonaws.com Subdomains 730 375 Rank 75 IP 207.171.166.22 Region United States AS 16509 Organization Amazon.com, Inc.
6 tumblr.com Domain tumblr.com Subdomains 516 089 Rank 820 IP 66.6.33.159 Region United States AS 26101 Organization Yahoo!
7 gmail.com Domain gmail.com Subdomains 479 017 Rank 67 IP 216.58.212.133 Region United States AS 15169 Organization Google LLC
8 zaq.ne.jp Domain zaq.ne.jp Subdomains 440 759 Rank 111 063 IP 203.216.221.74 Region Japan AS 9607 Organization BroadBand Tower, Inc.
9 co.za Domain co.za Subdomains 389 753 Rank 2 974 IP 206.223.136.173 Region Mauritius AS 6968 Organization ZACR
10 googleusercontent.com Domain googleusercontent.com Subdomains 353 109 Rank 177 066 IP Region AS Organization
11 blogspot.com Domain blogspot.com Subdomains 329 217 Rank 11 172 IP 216.58.212.233 Region United States AS 15169 Organization Google LLC
12 secureserver.net Domain secureserver.net Subdomains 314 712 Rank 55 IP 208.109.192.71 Region United States AS 26496 Organization GoDaddy.com, LLC
13 wordpress.com Domain wordpress.com Subdomains 271 040 Rank 7 410 IP 192.0.78.17 Region United States AS 2635 Organization Automattic, Inc
14 kasserver.com Domain kasserver.com Subdomains 238 691 Rank 3 610 IP 85.13.128.191 Region Germany AS 34788 Organization Neue Medien Muennich GmbH
15 azure.com Domain azure.com Subdomains 165 886 Rank 25 IP 40.126.245.169 Region Australia AS 8075 Organization Microsoft Corporation
16 hinet.net Domain hinet.net Subdomains 158 550 Rank 978 732 IP 202.39.253.9 Region Taiwan AS 3462 Organization Data Communication Business Group
17 hotmail.com Domain hotmail.com Subdomains 151 608 Rank 201 857 IP 204.79.197.212 Region United States AS 8068 Organization Microsoft Corporation
18 telefonica.de Domain telefonica.de Subdomains 144 649 Rank 9 604 IP 213.95.181.12 Region Germany AS 12337 Organization noris network AG
19 barracudanetworks.com Domain barracudanetworks.com Subdomains 137 519 Rank 5 514 IP 64.235.144.132 Region United States AS 15324 Organization Barracuda Networks, Inc.
20 your-server.de Domain your-server.de Subdomains 134 280 Rank 64 208 IP Region AS Organization
21 home.pl Domain home.pl Subdomains 120 292 Rank 1 743 IP 212.85.96.183 Region Poland AS 12824 Organization home.pl S.A.
22 yandex.ru Domain yandex.ru Subdomains 108 617 Rank 380 508 IP 77.88.55.70 Region Russian Federation AS 13238 Organization YANDEX LLC
23 unifiedlayer.com Domain unifiedlayer.com Subdomains 78 430 Rank 387 814 IP 162.144.8.133 Region United States AS 46606 Organization Unified Layer
24 alcatel.com Domain alcatel.com Subdomains 72 726 Rank 113 704 IP 164.109.33.86 Region United States AS 3707 Organization MCI Communications Services, Inc. d/b/a ...
25 dynamics.com Domain dynamics.com Subdomains 71 114 Rank 7 604 IP 23.100.122.175 Region United States AS 8075 Organization Microsoft Corporation
26 rr.com Domain rr.com Subdomains 71 067 Rank 7 685 IP 71.74.186.228 Region United States AS 7843 Organization Time Warner Cable Internet LLC
27 sakura.ne.jp Domain sakura.ne.jp Subdomains 70 769 Rank 776 315 IP 163.43.24.70 Region Japan AS 9370 Organization SAKURA Internet Inc.
28 linode.com Domain linode.com Subdomains 69 710 Rank 26 428 IP 72.14.191.202 Region United States AS 63949 Organization Linode, LLC
29 myqcloud.com Domain myqcloud.com Subdomains 67 836 Rank 28 019 IP Region AS Organization
30 yahoo.com Domain yahoo.com Subdomains 65 058 Rank 4 063 IP 98.138.219.232 Region United States AS 36646 Organization Yahoo
31 blogspot.mx Domain blogspot.mx Subdomains 60 608 Rank 70 098 IP 172.217.20.73 Region United States AS 15169 Organization Google LLC
32 sgvps.net Domain sgvps.net Subdomains 60 169 Rank 170 661 IP 181.224.128.6 Region United States AS 32475 Organization SingleHop LLC
33 ono.com Domain ono.com Subdomains 57 645 Rank 447 IP 62.42.230.17 Region Spain AS 6739 Organization Vodafone Ono, S.A.
34 cloudfront.net Domain cloudfront.net Subdomains 57 627 Rank 4 632 IP Region AS Organization
35 weebly.com Domain weebly.com Subdomains 56 083 Rank 99 317 IP 74.115.50.110 Region United States AS 27647 Organization Weebly, Inc.
36 optonline.net Domain optonline.net Subdomains 54 832 Rank 36 068 IP 167.206.148.154 Region United States AS 6128 Organization Cablevision Systems Corp.
37 blogfa.com Domain blogfa.com Subdomains 54 042 Rank 3 454 IP 104.18.49.141 Region United States AS 13335 Organization Cloudflare, Inc.
38 theplanet.com Domain theplanet.com Subdomains 51 285 Rank 31 514 IP 66.228.119.73 Region United States AS 36351 Organization SoftLayer Technologies Inc.
39 ovh.net Domain ovh.net Subdomains 46 909 Rank 4 125 IP 213.186.33.6 Region France AS 16276 Organization OVH SAS
40 zeelandnet.nl Domain zeelandnet.nl Subdomains 44 385 Rank 506 187 IP 217.63.91.13 Region Netherlands AS 15542 Organization ZeelandNet BV
41 dreamhost.com Domain dreamhost.com Subdomains 40 801 Rank 20 978 IP 208.113.157.108 Region United States AS 26347 Organization New Dream Network, LLC
42 softether.net Domain softether.net Subdomains 40 777 Rank 3 246 IP 130.158.6.121 Region Japan AS 37917 Organization University of Tsukuba
43 comcast.net Domain comcast.net Subdomains 40 530 Rank 1 587 IP 69.252.80.75 Region United States AS 7922 Organization Comcast Cable Communications, LLC
44 googlevideo.com Domain googlevideo.com Subdomains 40 075 Rank 251 IP 216.58.213.228 Region United States AS 15169 Organization Google LLC
45 fu-berlin.de Domain fu-berlin.de Subdomains 38 192 Rank 1 129 IP 160.45.170.10 Region Germany AS 680 Organization Verein zur Foerderung eines Deutschen Fo...
46 free.fr Domain free.fr Subdomains 37 713 Rank 488 085 IP 212.27.48.10 Region France AS 12322 Organization Free SAS
47 ocn.ne.jp Domain ocn.ne.jp Subdomains 35 695 Rank 3 736 IP 153.254.170.142 Region Japan AS 2914 Organization NTT America, Inc.
48 google.com Domain google.com Subdomains 35 469 Rank 488 IP 172.217.20.110 Region United States AS 15169 Organization Google LLC
49 quadranet.com Domain quadranet.com Subdomains 35 248 Rank 54 093 IP 198.55.111.55 Region United States AS 8100 Organization QuadraNet Enterprises LLC
50 fastwebnet.it Domain fastwebnet.it Subdomains 34 995 Rank 290 453 IP Region AS Organization
51 myqnapcloud.com Domain myqnapcloud.com Subdomains 33 714 Rank 186 113 IP 54.88.230.244 Region United States AS 14618 Organization Amazon.com, Inc.
52 mailanyone.net Domain mailanyone.net Subdomains 32 264 Rank 330 229 IP 72.35.23.196 Region Canada AS 3561 Organization Savvis
53 myshopify.com Domain myshopify.com Subdomains 31 289 Rank 354 IP 23.227.38.32 Region Canada AS 62679 Organization Shopify, Inc.
54 verizon.net Domain verizon.net Subdomains 31 072 Rank 7 IP 192.16.31.26 Region United States AS 14153 Organization MCI Communications Services, Inc. d/b/a ...
55 cox.net Domain cox.net Subdomains 29 811 Rank 283 294 IP 45.60.106.167 Region United States AS 19551 Organization Incapsula Inc
56 sulinet.hu Domain sulinet.hu Subdomains 29 766 Rank 213 094 IP 193.6.241.86 Region Hungary AS 1955 Organization KIFU (Governmental Info Tech Development...
57 charter-business.net Domain charter-business.net Subdomains 29 560 Rank 21 436 IP 64.210.232.200 Region United States AS 20115 Organization Charter Communications
58 livejournal.com Domain livejournal.com Subdomains 29 438 Rank 4 591 IP 81.19.74.4 Region Russian Federation AS 24638 Organization Rambler Internet Holding LLC
59 asuscomm.com Domain asuscomm.com Subdomains 29 233 Rank 126 362 IP 5.129.219.12 Region Russian Federation AS 50923 Organization Metroset
60 hosteurope.de Domain hosteurope.de Subdomains 29 154 Rank 39 771 IP 80.237.128.168 Region Russian Federation AS 20773 Organization Host Europe GmbH
61 mailguard.com.au Domain mailguard.com.au Subdomains 29 120 Rank 10 499 IP 174.36.192.11 Region United States AS 36351 Organization SoftLayer Technologies Inc.
62 tmall.com Domain tmall.com Subdomains 27 868 Rank 221 IP 140.205.130.99 Region China AS 37963 Organization Hangzhou Alibaba Advertising Co.,Ltd.
63 telecomitalia.it Domain telecomitalia.it Subdomains 26 910 Rank 14 672 IP 156.54.82.96 Region Italy AS 20746 Organization Telecom Italia
64 totbb.net Domain totbb.net Subdomains 25 982 Rank 148 991 IP Region AS Organization
65 inmotionhosting.com Domain inmotionhosting.com Subdomains 25 980 Rank 531 IP 192.145.237.216 Region United States AS 22611 Organization InMotion Hosting, Inc.
66 selfhost.eu Domain selfhost.eu Subdomains 25 454 Rank 222 IP 82.98.87.202 Region Germany AS 12306 Organization Plus.line AG
67 sky.com Domain sky.com Subdomains 24 600 Rank 313 415 IP 90.216.128.5 Region United Kingdom AS 5607 Organization Sky UK Limited
68 ucebox.co.za Domain ucebox.co.za Subdomains 24 327 Rank 19 315 IP Region AS Organization
69 mit.edu Domain mit.edu Subdomains 23 832 Rank 9 IP 104.90.169.128 Region Netherlands AS 16625 Organization Akamai Technologies, Inc.
70 planet.nl Domain planet.nl Subdomains 23 533 Rank 190 306 IP 213.75.28.140 Region Netherlands AS 8737 Organization KPN B.V.
71 ip-pool.com Domain ip-pool.com Subdomains 21 983 Rank 720 202 IP Region AS Organization
72 on.net Domain on.net Subdomains 21 720 Rank 1 925 IP 150.101.140.197 Region Australia AS 4739 Organization Internode Pty Ltd
73 elasticbeanstalk.com Domain elasticbeanstalk.com Subdomains 21 146 Rank 353 932 IP 52.216.1.82 Region United States AS 16509 Organization Amazon.com, Inc.
74 inet.fi Domain inet.fi Subdomains 20 962 Rank 121 894 IP Region AS Organization
75 mail.ru Domain mail.ru Subdomains 20 854 Rank 790 IP 217.69.139.201 Region Russian Federation AS 47764 Organization Limited liability company Mail.Ru
76 squarespace.com Domain squarespace.com Subdomains 19 613 Rank 31 368 IP 198.185.159.177 Region United States AS 53831 Organization Squarespace, Inc.
77 pipex.com Domain pipex.com Subdomains 18 605 Rank 9 204 IP 212.74.99.37 Region United Kingdom AS 9105 Organization Tiscali UK Limited
78 telekom.hu Domain telekom.hu Subdomains 18 597 Rank 2 494 IP 212.51.65.65 Region Hungary AS 5513 Organization T-Mobile Hungary Telecommunications Comp...
79 uiowa.edu Domain uiowa.edu Subdomains 18 498 Rank 21 665 IP 54.163.225.50 Region United States AS 14618 Organization Amazon.com, Inc.
80 persianblog.ir Domain persianblog.ir Subdomains 18 309 Rank 2 663 IP 46.224.2.224 Region Iran AS 56402 Organization Dadeh Gostar Asr Novin P.J.S. Co.
81 herokudns.com Domain herokudns.com Subdomains 18 054 Rank 15 412 IP Region AS Organization
82 bezeqint.net Domain bezeqint.net Subdomains 16 457 Rank 52 973 IP 212.179.240.156 Region Israel AS 8551 Organization Bezeq International
83 charter.com Domain charter.com Subdomains 16 425 Rank 568 IP 142.136.168.58 Region United States AS 3456 Organization Time Warner Cable
84 usgovcloudapi.net Domain usgovcloudapi.net Subdomains 16 193 Rank 13 295 IP Region AS Organization
85 gvt1.com Domain gvt1.com Subdomains 15 181 Rank 863 592 IP Region AS Organization
86 list-manage.com Domain list-manage.com Subdomains 14 598 Rank 881 585 IP 205.201.132.96 Region United States AS 14782 Organization The Rocket Science Group, LLC
87 kent.ac.uk Domain kent.ac.uk Subdomains 14 497 Rank 417 676 IP 129.12.10.249 Region United Kingdom AS 786 Organization Jisc Services Limited
88 012.net.il Domain 012.net.il Subdomains 14 062 Rank 542 587 IP 192.118.8.145 Region Israel AS 9116 Organization B Communications Ltd
89 spdns.de Domain spdns.de Subdomains 14 058 Rank 535 874 IP 195.4.152.239 Region Germany AS 60175 Organization Wortmann Ag
90 homeserver.com Domain homeserver.com Subdomains 14 009 Rank 249 714 IP 207.46.232.182 Region Singapore AS 8075 Organization Microsoft Corporation
91 jimdo.com Domain jimdo.com Subdomains 13 749 Rank 1 891 IP 151.101.194.2 Region United States AS 54113 Organization Fastly
92 koerber.de Domain koerber.de Subdomains 13 442 Rank 224 202 IP 83.246.101.247 Region Germany AS 24679 Organization Hostway Deutschland GmbH
93 umanitoba.ca Domain umanitoba.ca Subdomains 13 189 Rank 1 763 IP 130.179.16.50 Region Canada AS 17001 Organization University of Manitoba
94 myshn.net Domain myshn.net Subdomains 13 172 Rank 249 462 IP Region AS Organization
95 accenture.com Domain accenture.com Subdomains 13 151 Rank 382 226 IP 170.248.56.9 Region United States AS 3573 Organization Accenture LLP
96 stanford.edu Domain stanford.edu Subdomains 12 572 Rank 810 933 IP 171.67.215.200 Region United States AS 32 Organization Stanford University
97 ox.ac.uk Domain ox.ac.uk Subdomains 12 541 Rank 292 895 IP 129.67.242.155 Region United Kingdom AS 786 Organization Jisc Services Limited
98 ni.net.tr Domain ni.net.tr Subdomains 12 358 Rank 108 206 IP 159.253.40.22 Region Turkey AS 51559 Organization Netinternet Bilisim Teknolojileri AS
99 over-blog.com Domain over-blog.com Subdomains 12 269 Rank 1 465 IP 195.20.13.122 Region France AS 43424 Organization PROCEAU s.a.r.l.
100 ctinets.com Domain ctinets.com Subdomains 12 009 Rank 1 359 IP Region AS Organization